Use

• Fog lights produce a wide, low-lying beam of light that helps the driver see where he is going during any type of harsh weather. Shining the light closer to the ground prevents as much reflection as possible from fog, rain and snow. Light from the main headlights can reflect back into the driver's face during adverse weather. However, fog lights can actually make it harder to see during certain conditions, such as when the fog is thick enough to reflect all light back. During these conditions, you should pull to the side of the road and wait for the weather to let up before driving again.
  
  

Colors

• Fog lights can come in several color tints. Bulbs made from tungsten-halogen lights work best for illuminating the ground at short distances. These bulbs come in yellow, blue, orange or white tints. Yellow lights are the most useful and safe variety. Orange lights offer some of the same security and illumination properties. Some fog lights use a blue tint that can pick up the tint from fog and snow and reflect it back into the driver's face. White-tinted bulbs that offer a beam that is close to daylight can also work well for fog lights. You can occasionally find fog lights that use a green tint.
  
  

Strengths

• You can find fog lights with different intensities and beam widths. The best type of fog light emits a dim but wide beam. Because the light is designed to illuminate the area immediately in front of a moving car, the beam should be wider than it is long. Regular headlights can provide illumination further down the road. However, during some weather conditions, you may need to turn off the main lights and use just the fog lights, because the regular bulbs produce too much reflection. Look for lights that offer wide beams and meet all U.S. safety requirements. The package should state whether the bulb is safety-rated. This type of bulb provides the best protection in adverse conditions.